I have a jpeg that I'd like to use for my avatar. It's dimensions are within the 150X120 pixel 6kB limit.
How would I go about using this on the forum ?
It says to link the websites URL but, I have it downloaded on my PC HDD.
How can I upload it to here ?

Simply to click with the right button of the mouse and to copy the address will not pass, photobucket itself gives out the url-address:
In the right top corner of the image it is clicked on a gear, and in the dropping out menu it is chosen "get links".